Ultra-fast battery contacting

ScanWalker® - The battery welding system of the future


The performance of e-mobility or stationary storage systems is often judged by the capability of the installed energy storage system. These typically consist of several hundred to thousands of individual cells connected in series and/or parallel. The most economical connection method currently available is the already highly dynamic remote laser welding of the cathode and anode contacts of the individual cells to a global busbar. In precise interaction with a clamping procedure that operates completely parallel to welding - detected based on characteristics, individually set, controlled, regulated, monitored and logged for each individual welding point  - our patent-pending production process is the method of choice for highly dynamic and economical battery contacting.


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The challenge

Joining dissimilar materials aluminium / copper / Hilumin together in an electrically conductive and mechanically resilient manner.

Process reliability and freedom from spatter: Even one faulty battery weld renders the entire battery pack unusable.

(Partially) charged lithium-ion batteries allow only minimal heat input.

ScanWalker® concept

Highly dynamic welding process: remote laser welding with single-mode laser "on-the-fly"

Independent clamping process: axis portals with sophisticated offset movements position the universal clamping masks.

Precise interaction: Continuously advancing camera provides real-time correction values for clamping masks and scanner mirrors.

Highest known performance for demanding connection quality in battery module production, with fully monitored clamping movements, compensation of component tolerances and avoidance of faulty welds.

Advantages of ScanWalker®

Contacting of ~ 120 cells/minute (at anode + cathode).

Monitoring and control of the clamping process for each individual cell, compensation of component tolerances (x/y/z) and avoidance of faulty welds.

Fluid on-the-fly movement for high laser utilisation with low mechanical stress.

Low-maintenance system design with universal clamping mask reduces unproductive times.

Cost-efficient yet versatile system concepts with low spare and wear part requirements.

Automated cleaning, calibration and changing of the clamping masks.